BREAST CANCER BREAKTHROUGH: RADIATION MAY BE UNNECESSARY FOR SOME PATIENTS
NCT ID NCT05866458
First seen Nov 01, 2025 · Last updated May 23, 2026 · Updated 30 times
Summary
This study is for women with early-stage breast cancer that has not spread to lymph nodes. After chemotherapy and lumpectomy (surgery to remove the tumor), if the cancer is completely gone, researchers want to see if it is safe to skip radiation therapy. The goal is to avoid the side effects of radiation without increasing the risk of the cancer coming back in the same breast.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
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Locations
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BC Cancer - Centre for the North
RECRUITINGPrince George, British Columbia, V2M 7E9, Canada
Contact
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CHU de Quebec - Universite Laval
RECRUITINGQuébec, Quebec, G1R 2J6, Canada
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CHUM - Centre Hospitalier de L'Université de Montréal
RECRUITINGMontreal, Quebec, H2L 4M1, Canada
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Cancer Centre of Southeastern Ontario at Kingston
RECRUITINGKingston, Ontario, K7L 5P9, Canada
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Centre Hospitalier Trois Rivieres Ste-Marie
RECRUITINGTrois-Rivières, Quebec, G8Z 3R9, Canada
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Centre hospitalier de Lanaudière
RECRUITINGSaint-Charles-Borromée, Quebec, J6E 6J2, Canada
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Jewish General Hospital
RECRUITINGMontreal, Quebec, H3T 1E2, Canada
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Juravinski Cancer Centre
RECRUITINGHamilton, Ontario, L8V 5C2, Canada
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McGill University Health Centre (MUHC)
RECRUITINGMontreal, Q, H4A 3J1, Canada
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Royal Victoria Regional Health Centre
RECRUITINGBarrie, Ontario, L4M 6M2, Canada
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Sunnybrook Health Sciences -Odette Cancer Centre
RECRUITINGToronto, Ontario, M4N 3M5, Canada
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Thunder Bay Regional Health Sciences Centre
RECRUITINGThunder Bay, Ontario, P7B 6V4, Canada
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Conditions
Explore the condition pages connected to this study.